/usr/lib/clisp-2.49/clx/new-clx/README

What is this?
=============
Hadn't we CLX for CLISP for centuries? Yes, but this is a re-implementation
of CLX written in C for speed. I started coding all this in December 1995. I
was motivated by the idea, that hopefully Garnet will run with acceptable
performance on my machine, when I would have finished this. And it was a
success, I am able to run a usable Garnet on my old but more stable
i48
more»

/usr/share/doc/clisp-module-clx/demos/README

These are various CLX demos.
Most came with the original CLX and has been adapted to CLISP.
Some are original with CLISP (notably sokoban).
To try them, do
$ clisp -i clx-demos
and read the instructions.
To try them all, one by one, do
$ clisp -i -x '(run-all-demos)'